Improved feeding-apparatus for nail-machine



U. S. WOLFP.

FEBDING APPARATUS PoR NAIL MACHINES.

No. 102,073. Patented-Apr. 19, 18'70l gaat einen.

URIAHS. WOLFF, 0F BURREL TOWNSHIP, PENNSYLVANIA.

Lette-rs Patent No. 102,073, lated April 19, 1870.

The Schedule referred to in theseLetters Patent and making part of the same.

To all whom it may concern.-

Be it known that I, URIAH S. WOLFF, of Burrel Township, in the county. of Armstrong and State of Pennsylvania, have invented an Automatic Nailbiachine Feeder; and I do hereby declare that the fol.

lowing is a full, clear, and exact description of the construction and operation of the same, reference being had to theaccompanying drawings and to the letters of reference marked thereon, in which- Figure 1 is a perspective view, and VFigure 2, a section of a part of the upper portion of my machine.

My invention is comprised in au improvedfeeding apparatus for nail-cutting machines,- and consists in certain improved combinations of devices, to be hereinafter described, for advancing, withdrawing, and

-turning the nail-plate, and ihr making and breaking the connection of the machine with the motor mech- To enable othersskilled in the art to make and use my invention, I will proceed to describe its construction and operation.

AA', &cl, is the frame on which the machinery rests, which is made of wood or iron, of the shape shown, or of such'other shape as is found most convenient.

The plate from which the nails are cut is held in a pair of claws attached4 to the end of the-rod B.

This rod passes through the box C, in which it turns' freely.

' The rod B is turned down where it rests in the box C, forming a collar on each side of the box, which keeps the rod from movingback and forth in the box.

The box G rests on the cross-head D, which moves in the guides E E.

The back end of the rod B fits into the 'cylinder F.

In this cylinder are two slot-s, a, only one of which is'seen in the drawing.

A key, b, passes through these slots and through the end of the rod B. This arrangement allows the rod B to slide backward and forward the length of the slot a, but prevents it from turning, except when the cylinder turns. Then the rod B turns with it.

' The cylinder F forms a part of the rod G, which rests in the box H, which is supported by the crossheads J J J which move in the guides E E;

The rod G terminates in the square rod K, on. which the small cog-wheel L fits.

This wheel is held in pla'ce by the cross-pieces c c.

The rod K moves back and forward through the wheel freely, but turns with the .wheel L when it is turned by the rack M, which is worked by means of the crank M on the end ofthe main shaft Every half revolution of the crankM' gives to the rod B and to the plate attached to its end a corresponding half turn.

While the plate is turning it is also being drawn hack and then pushed forward by means of the combined movements of the arm tl, which projects from the rod G, the connectingerod e, which is jointed to it and to the swivel on the double lever j', (which `is snpported by the standards g g on the cross-head J',) and the connecting-rod la., which connects the other arm of the lever f with the box in which the rod B rests.

This gives to the plate a motion analogous to that given bythe workman when feeding the machine by hand, which motion turns the plate and withdraws it, that the nail may drop from under the cutter.

A second forward motion, which is the real feedmotion, is given to the .plate by. means of the cogwheel N, which works into the rack O on the lower side of the cross-heads J J' J. There are two blank spaces opposite each other in this wheel wherel there are no cogs.

.When these blank spacesv reach the rack, the crossheads, vnot being held bythe cogs, are thrown hack to the end of the. guides E E by the spring P.

Every half revolution ofthe wheel N throws the. cross-heads, and with them the machinery they carry and the plate,` forward the length .of the nail-plate.

The shaft Q passes through thev wheel N, which is secured to it.

- The shaft is driven by the ratchet-wheel R, which is turned by means of the ratchets S and S'. The teeth on the wheel are so graduated that the turning of the wheel the space of one tooth shoves the plate forward the width of one nail.

The ratchet S is lworked by means of the levers and connecting-rods 'r r r" and t.

The lever t is thrown up by the cam T on the main shaft, and is thrown down by the pressure of the spring U. This movement draws the ratchet S back one tooth, and after it has dropped behind the -tooth pushes it forward, carrying the wheel around the width of one tooth. The ratchet S prevents the wheel from turning back while the ratchet S is moving back.

When the plate is all worked up, thc cam V, on the shaft ofthe ratchet-wheel, presses against the lever t, which, acting through the connecting-rods fu" throws the frame W, in which the driving-belt runs, to one side, carrying the belt onto the loose pulley Y, and stopping the machine. The band is thrown back by a hand-lever, not shown. r All the movements here described are derived, either directly or through eachother, from the main shaft, and are therefore perfectly at unison with each other. They alsol correspond with the motions of the cuttingmachine with which they are geared, turning and feeding the plate up between each cut of the machine.

What I claim as my invention, and desire to secure by Letters Patent of the .United States, is 1. The combination of the rods B and G and cylinder F with the sliding cross-heads D and J, all arranged and operating substantially as described.

2. In combination with the snbjectfmatter of the first clause of claim, the racks and pinions M O L N and springr P, or its equivalent, as and for the purposes set forth.

3. The combination of the rod G and arm el with the connecting-rod e, swivel and double lever f, and rod h, for the purpose described.

4. In combination with the subject-'matter of the third clause of claims, the cross-head D, rod B, cylinder F, and rack and pinion M L, substantially as set forth.

5. The rack O on the cross-heads J J', and the cogwheel N driven by the ratchet-wheel R, in combination with the ratchets S S', lever t., connecting-rods r 'r' r", cam T, und spring U., for giving the feed-motion, as described.V

G. The system of levers for operating the belt-shifting device, in combination with the cam V, all arranged substantially as setI forth.

URIAH S. \VOLFF. [L. 5.]

Witnesses:

ANDREW HUMBERT, FRANCIS Q. CLARK. 

